Patents by Inventor Demetrios Kalaitzidis

Demetrios Kalaitzidis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11857574
    Abstract: A population of genetically engineered T cells, comprising a disrupted Reg1 gene and/or a disrupted TGFBRII gene. Such genetically engineered T cells may comprise further genetic modifications, for example, a disrupted CD70 gene. The population of genetically engineered T cells exhibit one or more of (a) improved cell growth activity; (b) enhanced persistence; and (c) reduced T cell exhaustion, (d) enhanced cytotoxicity activity, (e) resistant to inhibitory effects induced by TGF-b, and (f) resistant to inhibitory effects by fibroblasts and/or inhibitory factors secreted thereby, as compared to non-engineered T cell counterparts.
    Type: Grant
    Filed: November 10, 2022
    Date of Patent: January 2, 2024
    Assignee: CRISPR Therapeutics AG
    Inventors: Mary-Lee Dequeant, Demetrios Kalaitzidis, Mohammed Ghonime
  • Publication number: 20230303713
    Abstract: Genetically engineered T cells expressing a chimeric antigen receptor (CAR) targeting CD19 and having multiple genetic edits, including a disrupted TRAC gene, a disrupted ?2M gene, a disrupted Regnase 1 gene, and/or a disrupted TGFBRII gene. Also provided herein are methods of making such genetically engineered T cells and methods of using the genetically engineered T cells in cancer treatment.
    Type: Application
    Filed: March 22, 2023
    Publication date: September 28, 2023
    Inventors: Mohammed Ghonime, Jonathan Alexander TERRETT, Demetrios KALAITZIDIS, Mary-Lee Dequeant
  • Publication number: 20230302053
    Abstract: Materials and methods for producing genome-edited cells engineered to express a chimeric antigen receptor (CAR) construct on the cell surface, and materials and methods for genome editing to modulate the expression, function, or activity of one or more immuno-oncology related genes in a cell, and materials and methods for treating a patient using the genome-edited engineered cells.
    Type: Application
    Filed: March 9, 2023
    Publication date: September 28, 2023
    Applicant: CRISPR THERAPEUTICS AG
    Inventors: Jonathan Alexander TERRETT, Demetrios KALAITZIDIS, Lawrence KLEIN
  • Publication number: 20230263828
    Abstract: A population of genetically engineered T cells, comprising a disrupted Reg1 gene and/or a disrupted TGFBRII gene. Such genetically engineered T cells may comprise further genetic modifications, for example, a disrupted CD70 gene. The population of genetically engineered T cells exhibit one or more of (a) improved cell growth activity; (b) enhanced persistence; and (c) reduced T cell exhaustion, (d) enhanced cytotoxicity activity, (e) resistant to inhibitory effects induced by TGF-b, and (f) resistant to inhibitory effects by fibroblasts and/or inhibitory factors secreted thereby, as compared to non-engineered T cell counterparts.
    Type: Application
    Filed: November 10, 2022
    Publication date: August 24, 2023
    Inventors: Mary-Lee Dequeant, Demetrios Kalaitzidis, Mohammed Ghonime
  • Patent number: 11679131
    Abstract: A population of genetically engineered T cells, comprising a disrupted Reg1 gene and/or a disrupted TGFBRII gene. Such genetically engineered T cells may comprise further genetic modifications, for example, a disrupted CD70 gene. The population of genetically engineered T cells exhibit one or more of (a) improved cell growth activity; (b) enhanced persistence; and (c) reduced T cell exhaustion, (d) enhanced cytotoxicity activity, (e) resistant to inhibitory effects induced by TGF-b, and (f) resistant to inhibitory effects by fibroblasts and/or inhibitory factors secreted thereby, as compared to non-engineered T cell counterparts.
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: June 20, 2023
    Assignee: CRISPR Therapeutics AG
    Inventors: Mary-Lee Dequeant, Demetrios Kalaitzidis, Mohammed Ghonime
  • Patent number: 11679130
    Abstract: A population of genetically engineered T cells, comprising a disrupted Reg1 gene and/or a disrupted TGFBRII gene. Such genetically engineered T cells may comprise further genetic modifications, for example, a disrupted CD70 gene. The population of genetically engineered T cells exhibit one or more of (a) improved cell growth activity; (b) enhanced persistence; and (c) reduced T cell exhaustion, (d) enhanced cytotoxicity activity, (e) resistant to inhibitory effects induced by TGF-b, and (f) resistant to inhibitory effects by fibroblasts and/or inhibitory factors secreted thereby, as compared to non-engineered T cell counterparts.
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: June 20, 2023
    Assignee: CRISPR Therapeutics AG
    Inventors: Mary-Lee Dequeant, Demetrios Kalaitzidis, Mohammed Ghonime
  • Patent number: 11649438
    Abstract: Provided herein, in some embodiments, are methods and compositions (e.g., cell compositions) for the treatment of cancer.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: May 16, 2023
    Assignee: CRISPR Therapeutics AG
    Inventors: Jonathan Alexander Terrett, Demetrios Kalaitzidis, Mary-Lee Dequéant, Zinkal Samir Padalia
  • Patent number: 11622977
    Abstract: Materials and methods for producing genome-edited cells engineered to express a chimeric antigen receptor (CAR) construct on the cell surface, and materials and methods for genome editing to modulate the expression, function, or activity of one or more immuno-oncology related genes in a cell, and materials and methods for treating a patient using the genome-edited engineered cells.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: April 11, 2023
    Assignee: CRISPR THERAPEUTICS AG
    Inventors: Jonathan Alexander Terrett, Demetrios Kalaitzidis, Lawrence Klein
  • Publication number: 20230046228
    Abstract: Methods for manufacturing genetically engineered T cells expressing a chimeric antigen receptor (CAR), such as a CAR that binds human CD19, BCMA, or CD70, and having multiple additional gene edits, for example, a disrupted Regnase-1 gene, a disrupted TGFBRII gene, a disrupted TRAC gene, a disrupted ?2M gene, or a combination thereof, using CRISPR/Cas gene editing systems.
    Type: Application
    Filed: July 26, 2022
    Publication date: February 16, 2023
    Inventors: Hui YU, Mary-Lee DEQUEANT, Demetrios KALAITZIDIS, Mohammed GHONIME
  • Publication number: 20230044761
    Abstract: Materials and methods for producing genome-edited cells engineered to express a chimeric antigen receptor (CAR) construct on the cell surface, and materials and methods for genome editing to modulate the expression, function, or activity of one or more immuno-oncology related genes in a cell, and materials and methods for treating a patient using the genome-edited engineered cells.
    Type: Application
    Filed: October 1, 2021
    Publication date: February 9, 2023
    Applicant: CRISPR Therapeutics AG
    Inventors: Jonathan Alexander Terrett, Demetrios Kalaitzidis, Lawrence Klein
  • Publication number: 20230021539
    Abstract: Materials and methods for producing genome-edited cells engineered to express a chimeric antigen receptor (CAR) construct on the cell surface, and materials and methods for genome editing to modulate the expression, function, or activity of one or more immuno-oncology related genes in a cell, and materials and methods for treating a patient using the genome-edited engineered cells.
    Type: Application
    Filed: October 1, 2021
    Publication date: January 26, 2023
    Applicant: CRISPR Therapeutics AG
    Inventors: Jonathan Alexander Terrett, Demetrios Kalaitzidis, Lawrence Klein
  • Patent number: 11497773
    Abstract: A population of genetically engineered T cells, comprising a disrupted Reg1 gene and/or a disrupted TGFBRII gene. Such genetically engineered T cells may comprise further genetic modifications, for example, a disrupted CD70 gene. The population of genetically engineered T cells exhibit one or more of (a) improved cell growth activity; (b) enhanced persistence; and (c) reduced T cell exhaustion, (d) enhanced cytotoxicity activity, (e) resistant to inhibitory effects induced by TGF-b, and (f) resistant to inhibitory effects by fibroblasts and/or inhibitory factors secreted thereby, as compared to non-engineered T cell counterparts.
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: November 15, 2022
    Assignee: CRISPR THERAPEUTICS AG
    Inventors: Mary-Lee Dequeant, Demetrios Kalaitzidis, Mohammed Ghonime
  • Patent number: 11471491
    Abstract: Materials and methods for producing genome-edited cells engineered to express a chimeric antigen receptor (CAR) construct on the cell surface, and materials and methods for genome editing to modulate the expression, function, or activity of one or more immuno-oncology related genes in a cell, and materials and methods for treating a patient using the genome-edited engineered cells.
    Type: Grant
    Filed: October 1, 2021
    Date of Patent: October 18, 2022
    Assignee: CRISPR THERAPEUTICS AG
    Inventors: Jonathan Alexander Terrett, Demetrios Kalaitzidis, Lawrence Klein
  • Publication number: 20220249558
    Abstract: A population of genetically engineered immune cells (e.g., T cells), which express a chimeric antigen receptor (CAR) specific to CD19 and contain a disrupted TRAC gene, a disrupted B2M gene, or both, for use in treating a B cell malignancy.
    Type: Application
    Filed: April 30, 2020
    Publication date: August 11, 2022
    Applicant: CRISPR Therapeutics AG
    Inventors: Mark Benton, Tony Ho, Demetrios Kalaitzidis, Ewelina Morawa, Jonathan Alexander Terrett
  • Publication number: 20220226375
    Abstract: Provided herein, in some embodiments, are methods and compositions (e.g., cell compositions) for the treatment of cancer, such as CD33+ malignancies.
    Type: Application
    Filed: November 7, 2019
    Publication date: July 21, 2022
    Applicant: CRISPR Therapeutics AG
    Inventors: Jonathan Alexander Terrett, Jason Sagert, Demetrios Kalaitzidis
  • Patent number: 11389481
    Abstract: A population of genetically engineered immune cells (e.g., T cells), which express a chimeric antigen receptor (CAR) specific to CD19 and contain a disrupted TRAC gene, a disrupted B2M gene, or both, for use in treating a B cell malignancy.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: July 19, 2022
    Assignee: CRISPR Therapeutics AG
    Inventors: Mark Benton, Tony Ho, Demetrios Kalaitzidis, Ewelina Morawa, Jonathan Alexander Terrett
  • Publication number: 20220118019
    Abstract: A population of genetically engineered immune cells (e.g., T cells), which express a chimeric antigen receptor (CAR) specific to CD19 and contain a disrupted TRAC gene, a disrupted ?2M gene, or both, for use in treating a B cell malignancy.
    Type: Application
    Filed: October 19, 2021
    Publication date: April 21, 2022
    Inventors: Mark BENTON, Tony HO, Demetrios KALAITZIDIS, Ewelina MORAWA, Jonathan Alexander TERRETT
  • Patent number: 11298378
    Abstract: Materials and methods for producing genome-edited cells engineered to express a chimeric antigen receptor (CAR) construct on the cell surface, and materials and methods for genome editing to modulate the expression, function, or activity of one or more immuno-oncology related genes in a cell, and materials and methods for treating a patient using the genome-edited engineered cells.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: April 12, 2022
    Assignee: CRISPR Therapeutics AG
    Inventors: Jonathan Alexander Terrett, Demetrios Kalaitzidis, Lawrence Klein
  • Publication number: 20220088078
    Abstract: A population of genetically engineered T cells, comprising a disrupted Reg1 gene and/or a disrupted TGFBRII gene. Such genetically engineered T cells may comprise further genetic modifications, for example, a disrupted CD70 gene. The population of genetically engineered T cells exhibit one or more of (a) improved cell growth activity; (b) enhanced persistence; and (c) reduced T cell exhaustion, (d) enhanced cytotoxicity activity, (e) resistant to inhibitory effects induced by TGF-b, and (f) resistant to inhibitory effects by fibroblasts and/or inhibitory factors secreted thereby, as compared to non-engineered T cell counterparts.
    Type: Application
    Filed: October 4, 2021
    Publication date: March 24, 2022
    Inventors: Mary-Lee Dequeant, Demetrios Kalaitzidis, Mohammed Ghonime
  • Publication number: 20220090012
    Abstract: A population of genetically engineered T cells, comprising a disrupted Reg1 gene and/or a disrupted TGFBRII gene. Such genetically engineered T cells may comprise further genetic modifications, for example, a disrupted CD70 gene. The population of genetically engineered T cells exhibit one or more of (a) improved cell growth activity; (b) enhanced persistence; and (c) reduced T cell exhaustion, (d) enhanced cytotoxicity activity, (e) resistant to inhibitory effects induced by TGF-b, and (f) resistant to inhibitory effects by fibroblasts and/or inhibitory factors secreted thereby, as compared to non-engineered T cell counterparts.
    Type: Application
    Filed: September 23, 2021
    Publication date: March 24, 2022
    Inventors: Mary-Lee Dequeant, Demetrios Kalaitzidis, Mohammed Ghonime